On this page you will find a detailed description how to unlock the bronze trophy "Ripper Ruined" in Crash Bandicoot for PlayStation 4. The trophy is obtained by defeating the second boss in the game - Ripper Roo.
This fight takes place on nine green platforms surrounded by water - this means you must perform very precise jumps, so that you don't jump into the water and die. What's interesting, Ripper Roo doesn't have any direct attacks - the duel ends in failure "only" if you fall into him. The boss jumps with a little delay, giving you enough time to escape from the endangered platform.
What makes the fight MUCH easier is the fact that you can use the side areas marked on the picture. Ripper Roo never jumps into any of them and you can stay there in order to wait for a good time to start or resume weakening the boss.
In order to deal damage to Ripper Roo you must use the red Big TNT chests that will be floating down the river and stopping next to each row of green platforms. After jumping on such chest a countdown will start - after a few seconds the chest will explode.
It is best to look for an opportunity to activate the red chests when they reach the middle row of platforms. Once the countdown starts, hide in one of the above mentioned side areas or jump away to a safe platform. Ripper Roo will receive damage if the explosion will occur near him. Repeat this tactics three times in order to win.