Quoted from Deez:

So I think the main problem with the kiss code currently is that you're not doing anything. It's a rudimentary framework of hit the lit shot and you get points. Now while that's the premise for almost every single game, most games at least overlay some sort of story. Take star trek - if you took away the fact you're playing thru the missions or scenes from the movies, it would be exactly the same as hit the lit shots for points. I think that's just a flaw with music pins in general. AC/DC really nailed it by having different areas of the playfield be focused around different songs. That was a brilliant concept with physical design as well as code integration.
Kiss just feels lazy in that regard - shoot lit shot for points. The lit shot pattern changes for each song - sometimes there's a graphic that goes with the shot.
I do believe the game shoots smooth as butter - I love the contrasting difficulty between how easy and wide the middle ramp is with the tightness of the right ramp. Also love the Lawlor inspired thru the pops shot that Borg keeps putting on his games. I think if we stay tuned Stern will come thru with a great code drop. I just hope it's not too late sort of like x-men where they completed the game, but the hate and frustration was already there.