A trophy can be found in every mode except Gone Fishing. In order to get them, you will need, for every level, to locate two keys and use them on a chest usually found near your spawn location. Each section of this guide contains a quick video where I show the two keys' locations.

As you can see, the trophies are very easy to obtain once you know their locations, especially the Gone Golfing one.

As a side-note, after obtaining the three trophies, you will unlock a short episode called 'Super Golf Bros', which is unsurprisingly a parody of the original Super Mario Bros. Completing this will also grant you the 'Too Much Soda' achievement.

Anyway, that's already the end of this guide, all of the other achievements are fairly straight-forward, so either try to find them yourself or use the only other guide for this game. Have fun!