Add explosion effect
Import new assets
Adjust sprites' origins
Put icons on weapon buttons
Add damage text to Destructible.lua
Add sound effect
Put a splitter between two screens
Add missile animation to missile launcher
Add laser to Interceptor
Add robot animation to RobotBase
Flip robot horizontally when needed
Add notice Popup before game begins
Win/Lose game popup
Add fake core
Add upgrade to MissileLauncher
Add upgrade to RobotBase
Make explosions bigger
Correct robot icon on weapon menu