1.) With Mario and Luigi: When the player slldes down a slope, it becomes inmune to damage caused by certain enemies (like a goomba). What's the wrong with this? Don't matter how slow you're sliding, you will be always inmunne. However, if you're sliding too slow you can't kill an enemy, it requires a minimun speed. I'd suggest don't make inmune the player unless it has the "minimun" velocity because happens weird things like this:
- Spoiler

BTW at this speed in SMBX 1.3, the enemy would've kill you. :P- Spoiler

- Spoiler

A suggestion to fix this would make it like in SMBX 1.3, when you get damage and the player is shrinking, the hitbox will be the same than normal Mario:- Spoiler

3.) This is hard to explain, I only can explain this with a video:
- Spoiler
-
Original link: https://vimeo.com/179267607
4.) The following problems happens with Leaf and Tanooki suit's and affects all the players. There's a lot to discuss about this, but I will try to keep this topic as short and accurate as I can.
- Spoiler
- This is a bit difficult to explain. If you do a tail attack and jump quickly, the attack will "cut" and the player will stop the tail attack at the same instant, even if this has not completed.
- Spoiler

- Here's a weird error, when you're floating of flying, if you duck and change the direction (left to right or viceversa) the physics will be very weird.
- Spoiler


5.) This happens with Mario and Luigi. While the player is sliding, it still can shoot: fireballs, iceballs, hammers, etc.. Also it can make the tail attack. The player shouldn't be able to make any kind of extra-attack when its sliding down a slope.
6.) (This happens only in the lastest patch and it's a very small error) When any player shoots something (fire ball, ice ball or hammer), it can't duck for some seconds. This is right only with Link, but other players shouldn't be affected by this.
7.) The Shoes are correctly calibrated only for Mario and Toad, for Luigi and Peach shoes are wrong calibrated:
- Spoiler
- (Players only should show their heads)

- Talking about the shoes I noticed there's a feature that lets you make "double jump" for a little moment (I think this happen only in the last patch). Anyway I like this, but the time the player can make "double jump" should be a bit less (just some miliseconds less) to avoid weird jumps like this). ;)
- Spoiler

8.) There's a little bug with warps. I will only mention this shouldn't happen wth doors and pipes, I guess with loop and instant warps it's okay. These warps won't "restart" the last movement the player did before to enter in a door/pipe. When player it's on the warp, any kind of movement should be "anulated" and restarted, but it doesn't. The problem is that could happen things like:
- Spoiler

(Or sometimes you appear sliding wich is weird)
9.) When Peach stomp an enemy she should be able to "fly" again, just like in SMBX 1.3. Currently she only can fly one time from the last time she touched the floor.
10.) This bug is a bit hard to explain. When Peach it's mounted on a shoe and she jump (and she's running), if you make a normal jump and you keep pressing the key "Jump", Peach will make a weird and short fly:
- Spoiler

(This doesn't happen when you jump without move) In the gif image, in any moment I pressed two times "Jump" key, the fly that Peach did was totally unvoluntary. :P
11.) There's a bug with Propeller Suit, it affects all the players. Every time you get a power-up (something doesn't change the status), you can make multiple "spin jumps" and fly. Let me explain it better:
- Spoiler

You also can...- Spoiler

That's all for bugs to report!
Oh, and there are two personal suggestions I'd personally like to see, it also would polish the game a bit more. I know the list is already long but I'd love these things would be taken into count for nexts patches/versions, these things aren't a big deal though. :)
- Spoiler
- 1.) I think the slopes gives a bit too velocity to the player (specially the "custom" slopes like the 1x2 block), In my opinion the slopes should give a bit less velocity to the player. I also would like to see more "elasticity" in the slopes, I mean, the effect when the player change the direction (in this case up to down) because I feel the effect it's a bit ""dry". Also a nice way to polish this would be make the sliperly effect (effect-74) appear a bit more in less time while sliding. Here's a little comparison between SMBX 1.3 and 1.4 sliding, maybe it could help a bit to know what I mean:
- Spoiler
- 1.4:
1.3: 
2.) I'd like the Peach fly be more similar to SMBX 1.3 / SMB2, but how exactly? here are the differences I could notice:- In SMBX 1.3 Peach can fly exactly 6 pixels, in SMBX 1.4 she can fly 8.
- In SMBX 1.3 when the "Fly" start, she starts to fly to DOWN to UP, in SMBX 1.4 she starts UP to DOWN
- In SMBX 1.3 the flight speed (I mean the speed with which ascends / descends) is exactly the same. In SMBX 1.4, she ascend slowly and decends faster (it's like if she were making small jumps).
- In SMBX 1.3 the flight time it's a little, just a little faster (like 0.3 seconds less than SMBX 1.4)
- Spoiler
- 1.3:
1.4: 


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