Collect 10 or more hearts in one run.

Defeat 99 monsters in one run.

Reach the score 50 or higher without shooting anyone.

Die by passing through the negative Red bonus gate.

Set all nine highscores.

Get killed by the first monster you encounter.

Defeat 50 monsters in one run.

Shoot a monster off the right edge of the screen before you can see it.

Set three highscores.

Defeat a Yellow monster.

Set your first highscore.