there's also a glitch which lets you move while being in a pose of an idle player - some attacks like savage hit can make you walk like that when you keep pressing W,A,S or D when you character comes back to its original spot, this glitch gets disabled once you stop moving and it only affects your animation
There is a glitch where you can get infinite power/defense stones, but im not telling you how. Just know it involves COMPLETE SECRECY, as it ruins the game.
A probably old glitch is at the Frogville plaza fountain, you sit on the bench facing the gear shop and Frogildi's Fortunes then jump at the edge of the fountain near the water, you jump down and the swim animation with water splash sound until you reach Frogville Road or Mellow Meadows.
There is also a glitch with mobile, where winning a battle with fiery explosion can cause you to move twice as fast as normal.