the bellow example should give u an idea on how the scoring should work. now i made it so it scores on tap, but u can make it when health of player =0 or enemy health = 0 then u give it a point to opposite team. whenever a side has 2 wins then the game is won and resets or it can go to the next enemy. resetting the game round u basically reset the layout. but with the current scoring u don't reset the global variables ever, unless u go to a new battle enemy then u can reset them either all together or just the specific ones that keeps stage scoring like in this case enemy wins /players wins counts for that specific stage.
now i set it so is max 2 rounds but u can set it to 4 or 3 or N number .
from here on making those round bubbles appear u just need to create them based on how many wins each side has.
so if player has 1 or 2 wins you create a sprite with that round shape give it a frame u like to have place it in the screen make sure u destroy it on start of layout. then u create that sprite based on player wins. at a specific position
so if player has 1 win create bubleround at x0 y 60 if player has 2 wins create buble round at x bubleroundwidth*bubblecount+bublewidth/2 y 60 and so on
same goes for enemy.