Circus Caper

Circus Caper is a game released for the Nintendo Entertainment System.

Story
The player controls a young boy on a quest to save his sister who has been kidnapped by the circus.

Gameplay
The game takes place through various levels, each with a circus theme, fighting various enemies and bosses until you finally defeat the ring master and save your sister.

You start out in the game with little life, and few weapons, but you can collect various icons to increase how many direct hits you can take, keys to open doors, along with various circus items to shot as projectiles.

Many of the levels can be avoided by walking backwards and back through the curtain from where you start. This will take you right to that level's boss battle.