I LOVE the composition here and these are all perfect for a puzzle game. You nailed it on that front! (Though if I heard Dread when I was 8, I might have nightmares.)
My only critique would be that I'd like each instrument to pop out more. Making space and panning should help. Esp with the pizzicato strings, I feel like they should be front and center carrying the melody. You could try parallel compression, sidechaining, or even a transient shaper if you're feeling adventurous haha.