Hi Fabricio,
Thank you for the feedback !
I will check about the controls. Did you play on mobile or PC ?
At the moment, the only difference between small and big ghosts is the score granted.
Variation should be added in the next update, with multiple boss and boss skills implemented.
The house is currently fixed (one sprite). Some features around rooms should come a bit later. Some options have to be playtested.
I would be happy to have your feedback once these are available !