· If you do not touch any controls in the levels where the enemies dance, then you get a 10,000 point Mystery Bonus.
· Though obstacles provide warp capsules, the other way to get them is to destroy big enemies formed from two smaller ones. As there are no obstacles in the first leg of the game, this is the only way to warp after the first Challenge Stage.
· Collecting blue capsules not only gives you power needed to warp, but you also become briefly invincible.
· In certain stages, starting at about Stage 15, the last enemy will try to get away. If you get it before it does, it may drop a red capsule. Collecting this capsule instantly transforms whatever ship you have into a triple ship.