Incentivizing Replay Value

The game naturally incentivizes speedrunning. There is a built-in speedrun mode that disables all cheats, and a displays a speedrun timer. The player's time at the end of each level is also a major factor in determining their final rank.

There are three secret levels that can only be unlocked when the player gets an "A" rank or higher on all stages. Once all stages are complete, "New Game +" is unlocked in the Arcade Menu, which is similar to the main campaign, but with the secret levels at the end.

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