Hi! Thanks for checking out the game. All the stuff you mentioned are because we ran out of time ^^'
Tutorial:
I planned to implement a UI screen showcasing the mechs abilities and stats but it got scrapped when we did not have time. I balanced build phase timer to make the game challenging. The game was supposed to be played more than once to finish it. It kind of went into that direction at the end of development.
Player:
We made an early decision to focus mechs will do the damage and we stuck with it throughout the development. You can see the hammer icon where you can place mechs and it shows cost of each mech. The mechs on crystal are for only mining and don't attack.
Art:
We have used asset pack for Player character that might be why its clashing. We could not finish the player in time and we found a asset pack that does similar animations to what we wanted the player to do.
Resolution:
Yes the resolution is set to be 640x360 since its the optimal resolution for pixel art games and The game will scale properly to 1280x720, 1920x1080, etc 16:9 resolutions. I don't know what resolution if your monitor is, I recommend giving it a try with 16:9 resolutions.