Broken tiles: Tiles can be destroyed with simple animation. it is necessary 7 hits to destroy any tile and their neighbors. this is used to hidden items and shortcuts.
Checkpoint: Marks the mid of stage and pre-boss. Very usefull to not lose all your progress.
Boss: is under construction in the game.
Potions: Life potion and energy potion are used to regenerate part of your life during the game
Jowels: Increase total life and energy, you need to collect 3 of each type to gain this bonus (Example 3 life crystals)