Ecco the Dolphin is, and always has been, crap. There – I said it. The controls need an analogue stick, the jumping out of the water stuff is rubbish, the nose-attack is stupid, and the “find a key!” and “find a whale!” and “find some other thing!” gameplay is dull.
The XBLA version is the same as the Megadrive original. So, in that respect, is still crap. Even more so in that for some reason, having talked to a shark or a whale or something, the level restarted without warning.