on the second combos, the 2k can be substitute with 5k to maximize the damage it's easier to do the old combo movie version thought imho
hp fish, dash 5k, laser, dash 5k,2d,bite,iad j.d(1hit)+bubble,bite + bubble pop, air pike ...
that 2k scale damage like crazy
i've test that combo on Ky, Tes, Jam & Johnny
anyway doing bubble loop on pad is a big pain in the ass ... i'm macroing p+k button to do it correctly