Life Points (abbreviated LP from Super Starter: Space-Time Showdown) are the "health" left for a player while playing the game. An official duel starts with 8000 Life Points for each player, though sometimes players play with more or less depending on the situation. If the player's Life Points deplete to 0, the player loses. Once a player gets to 0 Life Points, they cannot get lower and have negative Life Points. Other common amounts are 4000 and 2000 Life Points (4000 is the most common amount used in the various anime series, while 2000 was used before the Duelist Kingdom tournament in the original series), or even 16000, offered in some Video Games.

Losing Life Points can be caused by the following: