Big ups to utunnels from gamefaqs for most of this information. I know we are missing some interesting things, it's been a little bit since my attention was focused on the game so I will post more as it comes up and please feel free to add
Random no order information:
-Walk backwards by holding the attack button and walking
-Invisibility is essentially a forcefield for certain enemies, not all, they will not see and thus not target you with attacks. for example cavemen(guys w club) you can walk right through and they wont attack
-wizard has stronger potions, more HP on healing and longer duration on forcefield and invisibility
-you can mitigate fall damage by 'edge cancelling' which is landing on the very last pixel of a ledge
-In co-op, be careful of having both characters use Key items, you CAN use the two keys on the same door this way and screw your progress
-co-op use of Pause can be used to bait enemies and mitigate damage all while selecting items, co-op can have seamless and advanced strategies with this
-The Wizard has a strong attack before the armor upgrade. Though it looks exactly the same as the normal attack. So as the Wizard, always hold up while attacking for more damage
-Powerups and strength scroll has no effect on charge attacks.
-Attack while at the apex of your jump for the height boost
-Strength scroll allows you to do double damage, unless you are using a charge attack.
-Blast damage normal enemies instead of killing them. So it has effect against stronger enemies, just you need to land more than one hit. It has no effect against bosses, at least not working on Manax.
-Your player has 255 HP and the weakest fire ball takes 10 points from you, it doesn't matter since the damage to the lifebar meter is visible.
-Damage examples: The red caveman type enemy has 8 hit points and a normal goblin has 2. The vulture boss has 50 HP for each forms.
n - normal attack s - strong attack c - charge 0 - no enhance 1 - 1st enhance 2 - 2nd enhance
Before Weapon upgrade:
Huntress: n0=2, n1=3, n2=4,s1=3, s2=4,s3=5 Barbarian: n0=3, n1=4, n2=5, s1=4, s2=5, s3=6 Wizard: n0=1, n2=2, n3=4, s1=2, s2=3, s3=5
After Weapon upgrade:
Huntress: n0=5, n1=6, n2=7,c=10x3 Barbarian: n0=6, n1=7, n2=8, s1=7, s2=8, s3=9 Wizard: n0=6, n2=7, n3=8, c=30
Yo, possible new area's discovered and implications for more in other levels. At the 8 second mark, that area is a door you can go back and forth in. Oh, and the actual vampire bat enemy, didn't know he existed until now either. So there may be more points like it in other maps, which could affect the run pathing!! Experimenting with it now.
There's also an interesting thing in the instruction manual...
Hidden Areas "...look for hidden areas. To find these, Jump into walls. You may also find some of them by pressing D-Pad up or down."
Jumping into walls we know, d-pad up we know for doors like demonstrated in video linked above, so now it's up to finding out what they mean by d-pad down :)
Can't tell exactly which factor it is whether its the beginning of the level, item use, wizard, spamming the button, activating it when you get hit, using it while you're in the initial invincibility when you spawn, or what exactly that caused it but I got some weird form of invincibility at 14:06 - 14:11 It was the second time it happened to me using the wizard and forcefield at that time strategy. It doesn't seem to come out or get used, but you become invincible but it's not as long as a forcefield, I was spamming the button trying to get it to activate and was baffled when I walked through them
Me playing with the freeze item, it's possible it does have some legitimate use we haven't discovered so please experiment. But much more likely is that it's a broken glitched artifact and it does nothing more than kill you instantly. Code below video:
CODE: FFEB50:0063
the '50' is the editable range, changing this grants you different items at 99 quantity. there is glitchy items available like armor and extra life, which do nothing and have no picture icon.
ACT - attack cancel technique. Works for melee attacks (barbarian with upgrade and without, huntress only without) in which you can rapidly cancel an attack with a movement input then attack again, in a repeating fashion
New wr shows two skips thought undoable for barbarian. Lava skip and elevator.