The thumb of the giant hand puts me in mind of those PC Engine games with cutscenes of rasterized anime illustrations, though the rest of the hand comes off more like a polished MS-DOS game from the same era. The main characters are cel-shaded in a similar fashion to the thumb but their proportions and colour choice put me more in mind of Cave Story or the cutscenes from Deltarune. The white speedline border on the right to offset the borderless left side of the screen (taken up by the giant hand) is inspired and adds a punch of colour contrast without distracting from the logo or characters.
Oh, thank you- I appreciate the analysis (and other comments)! o:
Yeahh, I did look at a few things to try and piece together how I could use the palette effectively (which probably explains the two impressions)- I'll take note to try and keep things a bit more cohesive for future projects.
Regarding the characters, I definitely leaned more towards that direction for sure- felt like it worked better in tandem to the giant hand/eyes. And for the border, thank you- yeah, you nailed it: I felt that the overall composition needed something to offset what was happening with the giant hand so I tried to make use of the colors I was already using (since I think at this point, I was using a bit less-than-half of the palette that week).