C64 games are not flawless. I have bought many of them to get an idea of it, and no it's not. the CPC can indeed compete, if you let aside all those lazy speccy ports and all the games that were thrown out the legs, there are so many games that are WAY better than on c64 while many games on CPC lacks music and colors (R-type on CPC was done in 21 days by Keith Goodyear, the poor chap
R-type 2 smells a bit the atari ST, if it's what you want me to say
But it still has my preference over R-type Amiga.