For water walking, go near the water -> head to the water -> charge the sword forming hurricane attack -> release A button + hold up and direction you want to walk -> spam s button to walk above water.
Yeah, did it.
There is a move that gives you more speed.
ex. when u want to go to the right, u need to head to the right then walk a bit then jump and click down button when u hit the ground u will instanly dash which gives you more speed and you can use this trick to catch the wall in secret room in dungeon.
the red circles in the map are enermy health station.
with Cash booster (+ shield over time) + EMP Chargers (destroy enermy's armor) +
prawn drone (+ extra security) + stun mines (stun and warp to shoot them and with
other upgrades from general part you will get through all 20 levels