While i do not hate this game, i also don't love it... i'm kinda in the middle...
This doesn't look like a really big deal to me, there were a whole bunch of enemies coming up all of a sudden and the seemingly random direction in which Freeza comes out of makes me not really be fond of this game. But i don't know why i keept playing it for a bit.
Also, the Kaioken didn't work for me, i don't know why.
And lastly, could you change the sounds that Goku makes? I'm sick of hearing him always saying "Hah-hah-hah-hah-hah-hah" over and over again since after a few seconds the enemies double in ammount and you have no other choice but to keep clicking the Z button.