I believe he means the Gorilla trial in Creature Island where your creature must destory a set of houses before the Gorilla does.
There are a couple of ways you can improve the odds in your favour:
This is one trial where letting Tyke hang around is quite helpful. For once, his destuctive tendencies can be a help, although you risk encouraging such behaviour in the furture if you take this route
Try and get some influence in the area so you can throw rocks at the houses
It takes a lot of work, but if you can manage to teach your creature Mega Blast and he uses it on one of the houses, the Gorrila will give up immediately (He's so impressed with your smashing ability or something like that)
Well I think the Gorilla Trial was one of the most easyest trials.My wolf whipped out those houses in seconds :angry: (yes before having a tiger I had an Ape but I swapped it to a Wolf).