Need to fix the Challenge thing.

I absolutely LOVE this game! Except there are a few things that NEED to be improved:

1. The cost of upgrades & outfits & characters.
- Why is every boost upgrade 5,000? Shouldnt they cost 500 and then work there way up?
-10,000 for outfits but it cost 20 or more backstage passes for the characters? If anything, I should earn backstage passes Every time I complete a FULL song.

2. The Challenge thing.
-When I go to friends I can see whos playing and what they scored on each song they play, but I cannot challenge them to a single song. I realized that doing it from the Game Center doesnt really help either, they just get my total score. This needs to be fixed because there is a mission that requires you to challenge a friend and I had to skip it because the challenge thingy-ma-jig doesnt work exactly. I spent some well-earned records that couldve went on some upgrades.

PLEASE FIX AND IT WILL RECEIVE ⭐️⭐️⭐️⭐️⭐️!

EDIT: The magnet doesnt attract the records!

And

The song slots should be unlimited or if not, then the prices shouldnt raise! We should only spend 1 backstage pass for 1 slot instead of 2 for 1.

And...

We should earn more music from each mission we pass! Like from random bands like Count Zero - My Mockingbird! That song is SOO addictive!

XxBroken_FangzxX about Record Run