It's an interesting idea. The nature of movement unfortunately makes it difficult to figure out where you will end up when you move up/down, and the orange and red tiles sometimes overlap in unfortunate ways, making the gameplay feel a bit unfair.
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After I programmed the player, I was actually thinking about using the mouse to let the player decide where they are gonna move more precisely, unfortunately I didn't actually do this because of time constraints, however, I'm thinking about updating the game to allow the use of a mouse. Also thanks for playing my game!