Thanks for playing the demo!
Also appreciate the constructive comments on the game, with this being the 1st stage that means that there's not a lot for players to play with yet, so more things are gonna be introduced later on! Same for the allies, it's very likely they'll get rebalanced as the game gets further developed
About the score, if you can maintain a couple of good combos and get a good amount of items/Spray Kids, you should be able to get on the scoreboard