The game is coherent, and I quickly understood that I need to get food and water.
Though I still can't figure out where I was supposed to go or what I should be working toward next. The mouse starves too quickly, so it is kinda stressful to explore the map—especially since even small bushes can block your path and slow you down.
Because of that, I don't think I quite reached the point where the main gameplay loop clicked for me yet. A little more guidance early on, or slightly more breathing room for exploration, might help.
Visually, though, I really like the retro style. The graphics have a lot of charm.