Pocket Tennis Color

Play as Ambia:
Defeat the three opponents in the first tournament in tournament mode to unlock an amoeba player which turns into a racquet when hitting the ball.

Play as Kaoru:
Defeat your opponents for the Aries cup in tournament mode to unlock a fat player.

Alternately, win four tournaments.

Alternate costumes:
Highlight a character on the selection screen, then press B.

Play with the ball:
Press Down before serving, to bounce, toss, or do something else the ball (depending on your character). There is only one animation per character, but most characters' animations are unique.
Information in this section was contributed by James Perih.