I came with the folllowing :
My game idea: a skittles video game, where the player throws 3 balls onto a pile of cans.
Target platform: Web browser
Target audience: Casual players who like brain teasers
What makes it unique: there is a monkey that can throw bananas at the player, making the player lose one ball. Player can gain extraball when touching green cans.
I asked claude for its feedback : 6.5/10. Enough to work on it. 😅