@evktalo Only familiar with the Genesis version of this game & its music, so this was... interesting! The source is nice enough, but I do love the less fanfare/celebratory and slightly darker direction you've taken it in, without changing the major key vibe. Lovely sound design with lots of different textures; bass slides in particular stood out. I have some very specific feedback that you can take or leave, of course:
While there are elements that are cross-panned or spread out, all of the melodic leads seem center to center-left. Having at least one melodic lead (flute, one of the synths, etc.) panned center-right might make the "melodic lead space" a bit wider/dispersed, in a good way? Could also open things up to leads occasionally overlapping/harmonizing while remaining distinct. Just a thought.
The backing synth line that fades in at 1'06" sticks around all the way to 1'35" or thereabouts, with the same straight sixteenth-note pattern; wondering about dropping it out for 1-2 bars and differentiating those measures as a break and/or modulating filter cutoff or something else to give it more movement/evolution over time?
The switch to double-time might benefit from a longer dropout & gradual rebuild or something else to differentiate the two sections, since the same basic sounds are being employed. I think using the same sounds is fine - it sounds good at both speeds - but something more elegant & deliberate to facilitate/bridge the jump to double, maybe?
Good stuff, as always!