Hey, thank you for the feedback. The speed thing you are seeing might be when you get tangled in the weeds in game. They slow the sub. However, if you are not able to tell this is happening it leads to your second point about signaling changes and attacks to the player. I think I need to add more descriptions to the menu tutorial and also try and add more animations and sounds to let the player know what is going on. Given more time I think I could polish that up.