Line Rider 2: Unbound actually has a pretty great soundtrack for what it is; a pay to play version of a popular flash game with extra features. A strange blend of electronic ambience with some occasional hype tracks... and yodeling. The ambient tracks are okay, but they don't exactly stick with you like the dance tracks. All the songs are long as hell though, so it might get repetitive. Personal favorites:
Moscow Circus,
Yodel Hey Ho, and
Sheep Dip.
Re-Volt, one of my favorite racing games of all time, has a pretty catchy soundtrack as well. Some garage, some trance, but it all just adds to the intense RC racing action of the game itself as you drive through neighborhoods, supermarkets, and maybe a custom track or two. Personal favorites:
FrontEnd (JamJar),
Live Wires, and
Toys for the BoysDynamite Headdy is a strange gem, but it has one of my most favorite Genesis soundtracks of all time. For a game parodying a Japanese-style puppet show, it sure has some HYPE stuff in it. Japanese-puppet shows must be really hardcore. Then again there are some rather fun, almost serene sounding tracks as well. The songs like to change-up, that's for sure. Personal favorites:
You're Izayoi,
Schumacher Fly, and
South Town's Theme100% Orange Juice has to be one of my favorite "anime games" of all time; both to play and to listen to. Rather than having an actual soundtrack the game gives it enormous cast individual music themes to play when any of them are winning. Thus, it has a very wide and contrasting soundtrack. One second you'll be listening to a glorious orchestral piece, and the next you may be hearing an intense trance track as the race to win grows faster. Or maybe a joke song will play, the joke characters get picked a lot in online. Personal favorites:
Kai's Theme,
Kyousuke's Theme, and
Tomato & Mimyuu's Theme
Zero
[spanish guitars intensifies]