I have been quiet about my ideas but if there is a chance Stern may read this the why not.

BUGS:
Lit instruments should be able to be collected during multiball. Right ramps should light instruments during multiball as well.

Should not be allowed to change song until it is completed.

Fix ball save for locked ball in Gene during multiball. Sucks when multiball ends and you have a ball locked in Gene and you get a cheap drain. The ball save light come on but it doesn't save it.

Now this may not be a bug but it certainly feels like it needs a ball save: In the LE/Prem when you lock a ball in Gene and it auto plunges the ball back into the pops there should be a ball save for cheap drains straight from the pop bumpers. You should not be punished for locking a ball.

WANTS:
Why the hell is there not a call out that says "You wanted the best, you got the best. The hottest band in world....Kiss!!!" That is how Kiss concerts start. Huge miss by Stern for not putting that in the there either when you press the start button or maybe for Kiss army or Rock city MB. This needs to happen.

There should be rules/objectives to complete the cities. Set it up so you can complete a US or a world tour.

Add a song for Rock City MB.....Shock Me, Cold Gin, just no stupid slow ballad like Beth or GGRR2U....Plenty still left to choose from besides those.

Would have been awesome to use some sounds from the original Bally Kiss. Would be really cool to have a menu option to set it to Classic or modern sounds.

You are right that they are limited on sings that could be added....but that is where Pinball Browser comes in handy.