Heya PurpleXYZ.
Thanks for playing our game.
For the movement, we did consider grid movement, but decided later to stick with free movement. Although this game have the look and feel of a 2d game the physics used is 3d. The checking for collisions are done using 3dcolliders. I guess more tweaking are needed for the colliders to behave better >_<.
You know, when we try our own game for who knows how many times, that we get really good at it 😂 We really appreciate the feedbacks.