Asda are selling "SEGA Superstars Tennis" for the Nintendo DS for £15.00 (inc Del)
You can get cashback through the sual sites (e.g. 2.5% Quidco, making it just £14.62)
The next best price seems to be £17.93 from The Hut.
Let's Play Crazy Tennis!
Balls teleport, multiply and explode, power-ups are thrown cross-court and characters unleash their amazing superstar skills.
Play Ball In 10 Whacky Locations:
From an alien-filled spaceport to a zombiefied graveyard.
Party Game Madness!
Shooting dragons! Potting monkeyballs! Smashing zombies! And more in 8 wild party games.
SEGA Superstars Tennis [Nintendo DS] from Zavvi - £15.00 (inc Del.)