I liked the way you mixed in the guitar part, it was a pleasant surprise. Although 100% sure on the lead synth sound, I enjoyed this alot.

Fun track with its own sound choices, sometimes unexpected but well executed like the guitar, maybe it doesn't fit perfectly the theme, but it was a good listen, well done!

Has a very nostalgic feeling to it, interesting track ! That guitar did suprised me, but in a good way ! Good job !

That guitar is so cool. Groovy bass. The chirping-like SFX is a little distracting, but its just a minor nitpick. A vibe! Nice work! 

Really fun track, I liked it a lot. Compositionally sound and it's orchestration is consistent and pretty darn arresting. The 8 bit parts maintain the identity, though a bit lost at times. I could see this in a more modern installment of Mario though so I think it fits pretty good. Mario soundtracks are generally more jazzy and syncopated but the rhythms you chose kept that upbeat feeling that the series' music treats as a must, so it was nice to see a breakaway from those conventions that stuck the landing.

I think you took a very creative approach with the sound, though i feel like you didnt entirely stay closer to that more 8 bit style besides the lead and those backing pads (only mentioning this because you mentioned you were going more for that style). I vibe with the song overall but I think i dont entirely get the same interpretation as what you intended here, it feels like the main key in that feels more sad is the fact it is in a minor key, but the instrumentation choices outside of the guitar kind of make it seem a bit more positive in my eyes. Thats purely subjective but i just wanted to share my interpretation. Overall nice tho!

Cool take, did not expect the electric guitar, nice touch. Sounds good too.