The tall-nut cannons at the end of Peachy District being mechanical was especially weird as we've had actually tall-nut cannons being plant based before! Part of what made zombies and plants distinct in the GW games is that the plants use all plant based stuff (barring some exceptions like Iron Citron, and I feel he should be changed to fire plant based projectiles instead), and the zombies all use actual devices. They could have made the marshmallow mortar be some kind of plant that launches sticky pods or something too. Not that Dave doesn't use any tech at all (Penny and Dave-bots for example), but it would be better to have things more consistent.
If it were up to me, a new shooter would be visually most like GW2, with some GW influence on the plant focused and 'normal' areas.
