There's actually a pretty easy way to get this trophy. Go to Gauntlet pick survival mode, pick the "Spiral of Doom" level and then make sure to select "Rabbit" for rank. It will default to Rabbit if you haven't played this level in Gauntlet and survival yet, but if you have then just scroll down. Alternatively if you haven't earned the trophy for getting Son of Son rank in all levels of gauntlet, that's a good time to work on this one as long as you do a bunch of levels at once. The overall key is to get 100 coins in one play session, so don't quit the game until the trophy unlocks.
Then play the level until you get to Eagle 1 or have a hard time getting more coins up to you there since it's possible to keep a good coin earning streak going for longer. Fail the level then. If the trophy hasn't unlocked yet, then keep going until it does. This is the key part. If you quit the game, the trophy progress appears to be reset to 0. Only adventure mode saves the total coins earned and it's harder to get 100 coins in a full run of adventure (and more time consuming too). Using this method you should average about 10-15 coins per run and it takes only a few minutes to get to a point where your coin earning streak ends and you should fail the level.
Overall, set aside about a half an hour to an hour aside to ensure you can do this in one play session and you should be able to have it easily enough just replaying that level over and over again. This can also be combined with trying to get gap shots for Win One for the Gapper.