For brief period of time in the development cycle, prior to obtaining permission to use Chip Jockey's tracks (and before Robi had finished composing all of his), we considered scoring the game with the CC-BY album 8-Bit Run n' Pun by Ozzed.
We very much made the right decision to wait for the tracks that we did have (as Robi and Chip Jockey's music are both frequently praised by players). However, if you're curious as to what the game might have felt like, the track assignment of Run n' Pun would have likely been as follows:
01 - INTROJUICE - Title Screen and all menus
02 - FAILIEN FUNK - Mines 1 (Stages 01-06)
03 - STROLL ‘N ROLL - Mines 2 (Stages 07-12)
04 - SHELL SHOCK SHAKE - Mines 3 (Stages 13-18)
05 - I’M A FIGHTER - Mines 4 (Stages 19-24)
06 - GOING DOWN TUNE - Mid-Game Cutscene
07 - CLOUD CRASH - Tower 1 (Stages 25-30)
08 - FILAMENTS AND VOIDS - Game Over Stats Screen
09 - BONUS RAGE - Hidden Chambers
10 - IT’S NOT MY SHIP - Tower 2 (Stages 31-36)
11 - PERIHELIUM - Tower 3 (Stages 37-42)
12 - SHINGLE TINGLE - Tower 4 (Stages 43-48)
13 - JUST A MINUET - Ending & The End Stats screen.