The invulnerability pickup grants the player a second chance for a short period of time. If the player collides with a wall the game will rewind time and allow the player to re adjust themselves. This is by far the coolest one I have created so far and by far peoples favourite.
The slow motion pickup on activation grants the player a brief moment of bullet time. This is going to be super handy for players who make it to the later parts of the game where it really speeds up. The music changes pitch and everything changes colour too which provides the player with a ton of visual feedback.
The coin multiplier increases the pickup rate of coins by x2 and also lasts for a brief period of time. I want to add some negative effects to using this though, something visual and something that makes the music react way more putting the player off.