Rhythm Heaven Custom Remix: Shoot-'em-Up 

"Invasion alert! Calling for all Blastronauts! And drummers! And translators! And scientists, dough balls, wizards, ninjas...you know what? Calling for everyone!"
I felt bored, so I guess have this. The song from a copycat game with 13 copycat games, including the song's copycat game. Why did I make this? I haven't the foggiest idea.
Feel free to suggest other ideas in the comments. I'd appreciate feedback!
GAMES USED, IN ALPHABETICAL ORDER:
Drummer Duel
First Contact
Love Lab
Moai Doo-Wop
Ninja Bodyguard
Polyrhythm
Quiz Show
Rhythm Tweezers
Rockers
Shoot-'em-Up
Tambourine
Wizard Waltz
Working Dough
MUSIC USED:
Shoot-'em-Up 2 (Megamix)
ADDITIONAL SFX:
Big Rock Finish
Tap Trial
CREDITS:
Created via Rhythm Heaven Remix Editor 3: github.com/chr...
Recorded via Bandicam
All Rhythm Heaven-associated (Tengoku/GBA, DS, Fever/Wii, Megamix/3DS) characters, games, and music owned by Nintendo