Human Plus is back. Just drop to -50000 credits and an experiment will be done on you. You need to do this multiple times to get the full benifit. warning, this will restart your game (except for the first mission)

1st time: Automatic Radar

2nd time: Ability To Throw The Laserblade

3rd time: Have Heat Taken Away From Attack

4th time: Ability To Walk While Shooting Back Weapons

5th time: Use Half Of The Energy

6th time: Double energy

Note: To shoot the laserblade use it then immediately press the boost button. It takes some practice but is completely worth it.