Steve vs Robloxian/Rap Meanings

=== Steve: ===
Welcome to Minecraft, ya asylum of fucked up and spoiled kids! 
(Steve welcomes Robloxian to the world of Minecraft, and calls Roblox as an asylum since there are many kids playing Roblox and condemns most of them as spoiled kids.)
your game put me to sleep, it would be more fun to hang out with squids! 
(Squids in Minecraft is a passive mob that spawns in water. People tend to not like them as they are mostly useless and spawn in random places and get in players' way. Steve compares Roblox to squids, and argue that Roblox is such a boring game that he'd rather play with squids.)
Youtubers get famous by me, you got kids typing without any mic, 
(Many Youtubers including CaptainSparklez, SkyDoesMinecraft and others are famous Youtubers who gained fame through playing Minecraft. Steve once again brings up the fact most of Roblox players are kids, and they do not even own a microphone to talk to people because they're so young and spoiled.)
got millions of mods while you charge kids to play with no kick. 
(In order to join 'Builders Club' in Roblox, you have to pay real money, as much as 349.99 dollars (for Lifetime Outrageous Builders Club Membership) even though the game itself is free. Minecraft is famous for many modifications from a texture pack to Tekkit- Steve is once again comparing Roblox's faults to Minecraft's strengths in order to condemn Roblox.)
Pickaxed away my fame, yet wasn't enough for you to reach my height, 
(Steve is arguing that Roblox took off based on Minecraft's fame as a building game, but it wasn't enough for Roblox to reach the fame Minecraft has earned. Steve uses the term 'Pickaxed' as Pickaxe is one of the most signature item of Minecraft that players use in order to mine stones and various gems.)
We built life-sized Enterprise while you deal with whiny kids in your site, 
(Steve once again mentions Roblox's underaged players and thus disparage them by comparing to people building Actual Life-sized Starship Enterprise from Star Trek Universe.)
got rhymes solid as a Diamond, your Machine Gun won't help against my sword, 
(Diamond in Minecraft is considered one of the most valuable items in the game due to their scarcity and use as a crafting material. Armors and tools crafted with diamonds are considered the highest tear with most most defense, most durability and most damage. In Roblox, you can make a gun, a highly technological weapon that can't be made in Minecraft unless the game goes through personal modification; Steve is saying his rhymes are like a Diamond sword, and no matter how strong Robloxian and his machine gun is, Steve will reign victorious.)
even my game's initials are MC, No-blox can match up to my brute force! 
(Continuing from the last line, Steve argues that Robloxian cannot defeat Steve no matter how strong Robloxian is. An MC, or emcee, is a term to describe a rapper; Steve is saying his game's initials show that he is a good rapper. Steve also makes a pun with Roblox's name, saying No blocks, or Noblox can stop him.)
=== Robloxian: ===
Look which blockhead has challenged the true building game of all, 
(Robloxian starts off by calling Steve a blockhead, a informal word for an idiot but also describes Steve in a literal way since he has a square or 'block' head, for challenging Robloxian who is clearly superior.)
better dug your own grave, it's the final Craft of your decline and fall! 
(Robloxian makes a pun out of Minecraft's name, saying this is the end of Minecraft and so Steve better go and dig his own grave, referring to digging a hole with a shovel in Minecraft.)
your raps are fragile like gold, might as well call you the butter, 
(Gold is a precious metal in Minecraft that can be obtained through mining. While tools crafted by Gold will mine faster than Diamond tools, it's extremely low durability makes it almost impractical for usage in equipment. Because of it's fragility and looks, a famous Minecraft Youtuber SkyDoesMinecraft often calls it 'a butter'. Robloxian is saying that since Steve's raps are weak as gold, it would be more fitting to call him the butter just like Sky does.)
sending your fifteen seconds of fame all the way down to the Nether. 
(The Nether is a hell-like dimension that can only be accessed through a Nether portal. It is home to several hazards, including flames, widespread standing and flowing lava, and various mobs. Robloxian is calling Steve's fame as a temporary one, and it will soon drop all the way down to hell, which is the Nether in Minecraft.)
I knew you were an example of idiocy, punching trees with your bare hands, 
(In the beginning of the game, Minecraft players do not have any tools so they punch trees to break them and to start crafting items with it. Robloxian is calling Steve stupid for trying to punch a tree with his hand.)
but even your raps are complete shit, flows droppin' and fallin' like sands, 
(In Minecraft, Sand is one of the few blocks that will fall until it lands to the next available block if there is no block below it. Robloxian is comparing Steve's flows to sand's behavior, denouncing Steve's rapping ability.)
I'm every coder's last goal, we got some gaps that even time can't mend, 
(Robloxian is deprecating Steve as a coding failure and that Roblox is superior when it comes to coding, and that no matter how hard Steve try, he would not reach Roblox's level of intricate coding powers.)
it seems the Gold Digger got stuck in his shaft, for this is your The End. 
(Robloxian is putting a wordplay on Gold digger, as it can be a slang for a greedy person but also can be a literal meaning, someone who digs gold. Robloxian is calling Steve a greedy miner who ended up getting stuck and met his demise, because battling Robloxian means it is the end of Steve. The End also refers to a dark, empty dimension in Minecraft where Enderdragon lives.)
=== Steve: ===
Alright, Let's take this up a Notch, I'm throwing a Jeb in your face, 
(A reference to two Minecraft developers, Markus Alexej "Notch" Persson and Jens "Jeb" Bergensten. After Notch stepped down from being the lead developer after it's official release, Jeb took over as the lead developer for the game. Steve is putting on a wordplay with their respective names, Notch as in taking it up a Notch, which means to increase the effort oneself is putting in, and Jeb with throwing a jab, a basic punch.)
putting the Number 1 sandbox game against this Creeper was a disgrace, 
(Creeper is a hostile mob in Minecraft that make use of a suicide-style attack by approaching the player and then exploding. Steve is calling Minecraft a No. 1 Sandbox game, which refers to an 'Open World' games where a player can roam freely through a virtual world and is given considerable freedom, and compares Roblox to a creepy game that cannot be compared to Minecraft.)
you went so low as being free, but it's to me everyone's throwin' the bills, 
(Steve once again mentions the fact that Roblox is free, considerably, compared to Minecraft which you have to buy the game. Steve is saying even though Roblox is free, people would rather pay the money and play Minecraft because Minecraft is better.)
I guess I can call you the Emerald, our fame differences are in an Extreme Hills! 
(Emerald is a precious gem in Minecraft that can be obtained by mining an Emerald Ore. Emerald ore is the rarest mineral block in the game as it only generates in Extreme Hills biomes. Steve is calling Roblox an Emerald because just like where Emerald spawns, the difference in fame gap between Roblox and Minecraft is so huge that Roblox cannot overcome it.)
coming at you like Herobrine, putting an end to this Lego rip-off at last, 
(Herobrine is a Minecraft Creepypasta who supposedly is Notch's dead brother, who manipulates the game world and follows the player if they harm Herobrine's constructions. Steve is calling Robloox a cheap rip-off of Lego, and he'll follow Robloxian like he is Herobrine and finish Robloxian off.)
pour burns like lava bucket, leaving everlasting marks on your round ass. 
(Lava is a fluid block in Minecraft that behaves similarily to the real-life lava, and it can be contained in a bucket. When contained in a bucket, it acts as a very effective fuel as it has the longest burning value of 1000 seconds inside the furnace. Steve is saying his rhymes will leave burns on Roblox that will last for a long time, just like how lava bucket does.)
You got nothing but crying toddlers, like a boring version of Call of Duty, 
(Steve yet again mentions that the majority of Roblox players are prepubescent kids, and compares Roblox to Call of Duty, a First Person Shooter game that is famous for having many kids play and rage.)
this Chief of theives just got griefed by Steve, and BOOM goes the TNT! 
(Griefing is the act of irritating and angering people in video games through the use of destruction, construction, or social engineering that was popularized by Minecraft. Steve is calling Roblox a thief, and that Steve just owned Roblox in this battle. TNT is an explosive block in Minecraft which is used here to replace dynamite in the original idiom, "And boom goes the dynamite".)
=== Robloxian: ===
Call me Enderman, I'm about to steal your fans and make you crippled, 
(Enderman is a humanoid mob in Minecraft sometimes pick up certain blocks regardless of whether they were natural or placed by the player and move it to somewhere else. Robloxian is comparing himself to the Enderman, as he will take Steve's fans like Enderman takes blocks and crumble Minecraft's fame.)
Don't make me laugh, with every update we beat your scorny ass by the triple, 
(Robloxian argues that every time there is an update for Roblox, they improve so much that Minecraft cannot possibly overcome.)
We're living in 21st century while you live in stone age with those graphics, 
(Roblox contains many modern items including a gun or a car while in Minecraft, you do not have such things and make your house or city from scratch, by mining and digging with "primitive" tools that were used in stone age; Robloxian is also comparing Minecraft's graphic to Stone-Age, calling it very old and outdated.)
you refuse to come out of your comfort zone, someone's still into classics! 
(Robloxian degrades Steve by calling him somebody who won't venture out and try risky things in his game to improve it, but just doing simple updates and bug fixes and refuses to come out of his comfort zone.)
My rhymes are raw, making you sick, respawn in awe, your items burn quick. 
(In Minecraft, eating a raw chicken will heal you but also have a chance to give a player a food poisoning, which causes one's food bar to drop more rapidly; Raw rhymes is another way to say a powerful rhyme, and Robloxian is comparing his rhymes to a raw chicken that will make Steve sick. Also in Minecraft, when you die, you will respawn at the last place you slept and without any items as it will be dropped when you die. When contacted with fire or lava, those items will burn and disappear; Robloxian is saying his rhymes are so hot that when it kills Steve, his rhymes will burn Steve's items as well.)
You got caught Redstone-handed, and now I'll ban you with just one click! 
(Redstone is a mined dust that is used to create a redstone circuits, which are used to create complex configurations. Robloxian is making a pun with an idiom 'caught red-handed', as often redstone circuits would be used to ignite TNT from far away. Robloxian is saying that now he caught Steve vandalizing, he will ban Steve from the server.)
Freezing your immigrant money, you deserve nothing but a minimum wage, 
(On August of 2010, PayPal, an international e-commerce business allowing payments and money transfers to be made through the Internet which Mincraft's creator Notch was getting money from people who bought his game, banned Notch's account which held over 750,000 dollars and refused to let Notch get it as they were suspicious of Notch earning that much money in such short time. Since Notch is originally from Sweden, making him an immigrant on America, Robloxian is deprecating Steve as an illegal immigrant and he does not deserve that kind of money, only a minimum wage that usual illegal immigrants get for working.)
you're such a square, Steve, but in this battle of rhymes, Roblox got an edge! 
(Calling someone a square was a derogatory term used mainly in the 1960s to describe someone who was boring, not willing to take chances and overall not fun. This is a wordplay based on the fact that Minecraft's graphics does not contain any circles or triangles, only squares. Also, having an edge over something means to be slightly better than someone or something else, and edge itself is what squares usullay have. Therefore Robloxian is downgrading Steve by calling him a square, but even though he is a square, Robloxian has an edge in this battle.)