Cute art and solid little gameplay loop! Could see this developing in either an idle game direction and/or a tower defense direction. After about a minute it got a bit stale, then I suddenly lost because my weapon cooldown was too long to kill all the ghosts coming. I dunno what I'd change to make it more exciting throughout, maybe different variants of ghosts that start spawning every 30 seconds? Fast ghosts, slow ghosts with more health, ghosts that steal logs, ghosts that attack you directly to stun you, etc