Combo Babies/HUD

1 - Health Bar. If this reaches zero, you lose the round.

2 - Burst Meter. You can use burst when this is full, but using burst empties it.

3 - Round Counter. You lose a heart when you lose a round. Lose both rounds and you lose the game.

4 - Timer. Counts down from 99 seconds. If it reaches zero, whoever has more health wins.

5 - Meter. Used for EX specials, supers, and baby cancels. Fills when you hold any forward direction at any point.

6 - Charge Bar. Used for each characters charge specials. Fills when you hold any backward direction at any point, and you can use your charge special when it's full.

Source