Make a Fish - That awesome bassline makes this my favorite track. I think the drums could be louder and snappier. The vocal you used towards the end adds so much, and dropping out the bass there was a powerful move.
Load or Save Fish - This seems like a remix/reinterpretation of Make a Fish. The difference in sound design is interesting, I just wish there were new and distinct elements that set it apart from Make a Fish.
Ready to Dive? - The instrument sound you chose is very relaxing and reminds me of a kalimba in some ways. Combined with the arpeggios in the composition, it makes for a great file select track.
This was a fun soundtrack overall - good work!