Can you save Planet Happyville from the Evil Space Fish? Probably not... but maybe it's worth a try.

Flags of Doom is a classic 1-screen retro platformer, with a few puzzles baked in. You are Ed, the 3rd or 4th last hope of planet Happyville. You must destroy the evil Space Fish by placing hundreds of tiny bombs over 100-120 stages of increasing difficulty. Can you defeat the invasion and get home alive? Probably not, but it's worth a try!

Good Game Database

Flags of Doom REVAMPED Achievements