Deltarune characters got in Rainbow Friends universe. I just wanted to make this. I made it on the free version, so I can't add other battles, but part 2 is on progress. The battle system is different from Deltarune: the attack does not end and you have to make the soul collide with the buttons and press Z, then Kris will attack or heal.
I think hard mode is not working
CREDITS:
Deltarune by Toby Fox
Rainbow Friends by Roy & Charcle (Roblox)
And blue's sprites (and the music) are from a FNF mod named "Friends to Your End"