This section provides you with quick references for all the Chapter 2 secret items, as well as the secret keys and stages that they unlock.

Secret Items	Stage Found	Stage Used	Stage Unlocked
Secret Key	Stage 1	Stage 2	Stage 7
Secret Coin	Stage 3	Stage 4	Stage 8
Secret Battery	Stage 6	Stage 5	Stage 9
Secret Hammer	Stage 9	Stage 6	Stage 10