Hedgehog Hammer

Hedgehog Hammer is a sub-game from Sonic Adventure and it's remake Sonic Adventure DX. The sub-game is only accessible by Amy Rose.

Gameplay
When Amy enters the room between the prison room and the main cabin in the Egg Carrier there will be a platform surrounded by eight holes. When Amy jumps on the center of it, the sub-game will begin. As time passes, mole-like Sonic and Super Sonic heads will pop out from the holes and Amy must hit them on the head to earn points. Sonic's are worth 100 points and Super Sonic's are worth 500 points (they are much harder to hit than the normal Sonic's). Dr. Eggman heads will also appear but will deduct 200 points from the player's score if they are hit. Amy is required to beat a high score of 2,000 points in order to escape from the prison area and proceed through her story. In addition to beating this high score she will also earn the Warrior Feather as a prize. If Amy comes back after her story is complete and can reach over 3,000 points she will earn the Long Hammer.