Name the locomotive.

Patch the Gasmask.

Kill 5 Heavies with takedowns.

Read all story files.

Gather all the fuses in the warehouse within 5 minutes.

Clear all stages in single-player mode as Adam.

Get an S-Rank on any stage.

Place all jewels in the clock tower monument.

Complete a stage on Mania difficulty.

Successfully land all three missiles from a Triple Missile Power-Up.

Free yourself from a TNT crate.

Break both elevator window panes.

Discover a retro level.