I always think that minigame-collections are incredibly time consuming to build so i am impressed with the way you did it in 48 hours.
I think the presentation score could have profited from a more coherent art style - its a weird mix of pixel art of different scales and vector-like graphics right now. The minigames themselves were pretty simple which is a good idea, but also a bit to easy for my taste - especially the flappy dice.
The design of the board is really inviting - very good job on that.