Ecco The Dolphin: Defender of the Future

Gameshark Codes:

Dolphin Soccer: This secret can be found on the Powers of Levitation level.

To play dolphin soccer against a warring Clan member, the first thing to do is to swim to the large central building underwater. Circle around it until you find the Information Shard. Enter the central structure here and head down the tunnel until you find an oval door near the bottom. This passage is split up by several weird organic doors that dilate when you get near them, allowing you to pass. Ignore the side paths for now, just head down the tunnel until you reach the chamber at the end. There is a Clan member here and a bubbler in the centre of the room. If you turn and face the entrance, you'll notice an oval section of wall to the left moving slightly in the current. Swim through it to find a secret room. Inside is a Stealth power-up. Grab it and head straight back. There is a pair of yellow lights at the back of the room. Touch your nose to the right one to be taken to Dolphin's World Championship, a soccer match between you and a fellow Clan member.