This game saves automatically at the end of each level and any options change.
The save file is located at C:\Users\<username>\AppData\LocalLow\JackoAces Studios\Fishy Dungeon Delving
This is what you play as. The fish can jump slide in four directions and use a grapple hook to launch through chambers.
Objects that glow with this pattern and color are not able to be grappled onto. These however are rare.
Pressure plates are used to activate various shortcuts and other things throughout the different levels.
Some require a certain amount of weight to activate.
Collect all fragments (14) scattered around the level to make the portal activate and progress to the next level.
Shortcuts are stones with purple runes on them that move. You are typically supposed to grapple onto them. Standard grapple stones look like this too but do not always move.
Yellow particles indicate moving platforms and shortcuts and flow in the direction of movement.