Bad Note is a robot giant Anti-toon, and the first boss of Rayman Raving Rabbids on the GBA. He is controlled by a tiny rabbid named, Pink. He can only be fought in your visit of Agony Jails. Defeating him will reward you with the Gangster costume
How to defeat
To defeat him you must jump over him while he is rolling and wait for him to jump and slam causing rocks to fall, when that happens evade them and he should try to ram you, when he is attack him and he will get damaged. He has 3 hits to die.