System Defender/Level 4

:"The Test Bots are attacking all at once. Can you outsmart all three?"
The fourth level of System Defender has the trio of Test Robots return after years of absence, and attack the EPF mainframe. It was released on February 10, 2011. There are 28 slots for cannons. Completing this level for the first time caused the player to earn the Test Bot Trio stamp.
==Scenario==
Bots "spawning" refers to when they appear on the map, not when they appear on the scanner at the bottom of the screen, which often happens mid-dialog. Bots also usually spawn in groups, which can overlap with other groups. For information on how much damage cannons deal to enemy bots, see here.
263 total bots appear in this level.
Character 	Dialog
G 	Red alert! The EPF mainframe is under attack.
12 red bots spawn. Each have 4 health and move at 3 speed. 	12 red bots spawn. Each have 4 health and move at 3 speed.
2 yellow bots spawn. Each have 4 health and move at 5 speed. 	2 yellow bots spawn. Each have 4 health and move at 5 speed.
Dot 	I'm detecting multiple enemy signals.
Dot 	Who are you? Identify yourselves!
JetBot 	Surprise attack - failed.
WheelBot 	Switching to speed attack.
SnowBot 	Affirmative. Holding back purple bots.
G 	The Test Bots? Here? That's impossible!
G 	We destroyed them after they attacked the island in 2008!
Dot 	No time to catch up on old times - incoming!
20 yellow bots spawn. Each have 6 health and move at 5 speed. 	20 yellow bots spawn. Each have 6 health and move at 5 speed.
5 yellow bots spawn. Each have 10 health and move at 5 speed. 	5 yellow bots spawn. Each have 10 health and move at 5 speed.
8 yellow bot spawns. It has 8 health and moves at 5 speed. 	8 yellow bot spawns. It has 8 health and moves at 5 speed.
1 yellow boss bot spawns. It has 20 health and moves at 5 speed. 	1 yellow boss bot spawns. It has 20 health and moves at 5 speed.
5 yellow bots spawn. Each have 9 health and move at 5 speed. 	5 yellow bots spawn. Each have 9 health and move at 5 speed.
WheelBot 	Speed attack failed. Yellow bots under construction.
JetBot 	Red bot construction complete.
Dot 	Hmm... Each Test Bot controls a certain bot color...
SnowBot 	Activating purple bots. Attack with red bots.
JetBot 	Affirmative. Launching dual attack.
Dot 	Boss Bots detected - stay sharp!
25 red bots spawn. Each have 10 health and move at 2 speed. 	25 red bots spawn. Each have 10 health and move at 2 speed.
10 purple bots spawn. Each have 40 health and move at 1 speed. 	10 purple bots spawn. Each have 40 health and move at 1 speed.
1 red boss bot spawns. It has 50 health and moves at 3 speed. 	1 red boss bot spawns. It has 50 health and moves at 3 speed.
5 purple boss bots spawn. Each have 60 health and move at 1 speed. 	5 purple boss bots spawn. Each have 60 health and move at 1 speed.
10 red bots spawn. Each have 15 health and move at 3 speed. 	10 red bots spawn. Each have 15 health and move at 3 speed.
3 red boss bots spawn. Each have 30 health and move at 3 speed. 	3 red boss bots spawn. Each have 30 health and move at 3 speed.
SnowBot 	Dual attack failed. Bots depleted.
WheelBot 	Yellow bots complete. Suggesting Boss Bot attack wave.
JetBot 	Affirmative. Launching attack. Code name: Triple-attack.
Dot 	They're all attacking at the same time!
G 	I'm trying to find a way to disconnect the Test Bots.
G 	I need time. Our defenses MUST hold.
20 red boss bots spawn. Each have 50 health and move at 3 speed. 	20 red boss bots spawn. Each have 50 health and move at 3 speed.
1 purple boss bot spawns. It has 180 health and moves at 1 speed. 	1 purple boss bot spawns. It has 180 health and moves at 1 speed.
8 yellow boss bots spawn. Each have 50 health and move at 4 speed. 	8 yellow boss bots spawn. Each have 50 health and move at 4 speed.
3 purple boss bots spawn. Each have 120 health and move at 2 speed.	3 purple boss bots spawn. Each have 120 health and move at 2 speed.
5 red boss bots spawn. Each have 110 health and move at 3 speed. 	5 red boss bots spawn. Each have 110 health and move at 3 speed.
1 yellow boss bot spawns. It has 65 health and moves at 5 speed. 	1 yellow boss bot spawns. It has 65 health and moves at 5 speed.
Dot 	Yeah! Defenses holding - nice work!
SnowBot 	Boss attack failed. Scanning options.
JetBot 	Suggestion: overwhelm EPF with all available bots.
WheelBot 	Affirmative. Launching attack. Code name: Demolition.
Dot 	Oh no... I'm detecting a huge enemy wave...
Dot 	G! I think we may be in trouble...
G 	Hold strong agents! I need only a few more moments!
Dot 	You heard G - let's show these bots who's boss!
20 red bots spawn. Each have 60 health and move at 3 speed. 	20 red bots spawn. Each have 60 health and move at 3 speed.
20 yellow bots spawn. Each have 40 health and move at 4 speed. 	20 yellow bots spawn. Each have 40 health and move at 4 speed.
20 purple bots spawn. Each have 80 health and move at 2 speed. 	20 purple bots spawn. Each have 80 health and move at 2 speed.
10 yellow boss bots spawn. Each have 40 health and move at 4 speed.	10 yellow boss bots spawn. Each have 40 health and move at 4 speed.
10 red boss bots spawn. Each have 75 health and move at 3 speed. 	10 red boss bots spawn. Each have 75 health and move at 3 speed.
1 purple boss bot spawns. It has 2000 health and moves at 1 speed. 	1 purple boss bot spawns. It has 2000 health and moves at 1 speed.
JetBot 	ERROR! ERROR!
WheelBot 	
SnowBot 	
Dot 	We did it! Great job G!
G 	I only disconnected their signal. You did the hard part.
G 	Excellent work, everyone.
==Trivia==
*Prior to the release of System Defender's sixth level, this level was marked as "Challenge level: 73 / 100" below its splash text in the game's menu.