When you're in a 2 player party and you're standing on a party button but the other person isn't, and he/she leaves, this will happen.

http://gyazo.com/52051972c91477630ef315a6f5ff6f52

I'm standing on the button, but it isn't being pressed and the game says the other party members need to get on, but there are no other party members.

This is a very minor bug though, since it can be fixed by just getting off the button and back on again.

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There's also another bug in the Advanced Training Hall, statue room, where both statues (and you) are inside of each-other.

To replicate:

1. Get the statues in this position. (there doesn't have to be one on the button, just one next to the button) http://gyazo.com/d10a42ab0fff58fb7084677f590f9d89
2. Pick up a statue and get on the button. http://gyazo.com/9ca43560fe7e81ec94b717b4d3996438
3. Put down the statue in the direction of the unbreakable block. http://gyazo.com/d7b0339ebf7a71cb93d993b7e08259c1
4. Move in the direction of the other statue and pick it up. http://gyazo.com/b0d8da1422ea34b9649a8e5b08384cf4
5. Repeat step 3. http://gyazo.com/8b8ec995360d0dfab745d2759d0fa71e

And now, the entire room: http://gyazo.com/7841aeaeeb2d1cc0149ae1cc3ef41df0

No second statue! The statues (and you) are inside of each-other. (I'm not visible in the last picture, I went out of the statues to get it)

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One more bug:

When you shield with the plate shield, it'll appear larger than it really is, but that's probably intentional. However, when you stop shielding while running, it'll stay that size until you stop moving.

Real size: http://gyazo.com/d5f91245b8e4268307b5d1580702752d
Bugged size: http://gyazo.com/369bb01f81b71ba7a19c53cecd76febd

(Open them both at once and switch between them.)

This might happen with other shields too, but I haven't tested.

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Another ACH bug, this time in the vial room.

The fire vial is skinned like the stun vial (except for the outline) until collected.