Highway to the Moon achievements

Use the Rainbow Sentries 380 Times or collect it 3 times.

Collect the Barrier Gun 5 Times or Defeat Leader Green as Leader Green.

Destroy almost every text box in the game at least once.

Get 3,000,000 points (lifetime).

Collect the Remote Sentries 5 Times or Defeat Leader Purple as Leader Purple.

Defeat Leader Green last.

Defeat Leader Blue without letting him or Leader Orange drop below 50% shields at the same time.

Collect the Variable Cannon 5 Times or Defeat Leader Orange as Leader Orange.

Beat a level while in a red reality where your HP is halved.

Pick up 1,000 Shield powerups (lifetime).

Beat a level without dashing.

Enter Level 2.