Bored in the Menu: short and sweet piano and percussion theme. Waltz helps connect to the theme. Love it!
Clocks Like Bubbles: Very peaceful and simple. I loved the drums towards the end that inserted a brief moment of energy.
Endless Possibilities: Cute track. Instrumentation reminds me of Bomberman Tournament from the GBA.
Couch Party Competition: bluesy vibes with those flat 5s. Sounds mischievous which really fits a multiplayer lobby to me!
Think Together: Good ol percussion. I can see it in a countdown sort of phase (so basically something like a thinking phase in a memory minigame in Mario Party)
Race Together: Energetic drums! Like this simplistic racing track, also gives me minigame vibes.
Nice work!