- Restarting the game removes unlocked characters (currently, it clears save data, this will be fixed once we implement saving)
- Going back levels causes objects to respawn

(SMS-001) Diving into the side of a pipe causes the player to enter the pipe and softlock (discovered by @redyoshi857)
(SMS-002) Some stars do not display animations correctly (discovered by @redyoshi857)
(SMS-003) Luigi, Waluigi, and Wafano can jump through the character and partner blocks (discovered by @redyoshi857)
(SMS-004) Exiting a stage while in a minecart softlocks the game (discovered by @redyoshi857)
(SMS-006) Minigames are completely broken (discovered by @MegaHedgehog)
(SMS-008) It is possible to walk left or right to go to next/previous screen in the character and partner rooms in the castle (discovered by @redyoshi857)
(SMS-009) Selecting the test room for Dev Start acts the same as selecting the Mushroom Festival (discovered by @ToadfanSchool)
(SMS-010) After collecting a star you can still move and jumping into a pit during this time softlocks the game (discovered by @DD-8861)
(SMS-005) Diving into a wall in some levels can get you stuck and cause the game to crash (discovered by @PusheenGames23)
(SMS-007) Changing screens sometimes launches player to the top of the screen (discovered by @PixelKing777)
(SMS-013) Changing characters near a wall causes the player to sometimes shoot up to the top of that wall (discovered by @Hasanmajid10)
(SMS-014) Diving into a spring while touching a wall causes the player to launch to the top of the wall (discovered by @ZappyBarbecue10)
(SMS-017) Standing next to a wall and turning around causes the player to shoot up to the top of the wall (discovered by @redyoshi857)
(SMS-012) Jumping sometimes causes the jumping voice clip to repeat twice (discovered by @Sonic0906_2)
(SMS-047) Player is unable to take damage from regular enemies (discovered by @ZappyBarbecue10)
(SMS-051) Touching the side of a pipe still allows you to descend, clipping into the floor (discovered by @gaming_spider999)
(SMS-034) Clicking green flag during objective-a-thon causes objective and highscore to not hide (discovered by @RainbowDash6)

(SMS-011) Pressing Up and Right while entering Bowser Jr's Airship crashes the game (discovered by @redyoshi857)
(SMS-015) Timer in Time Attack mode causes large amounts of lag to the game (discovered by @redyoshi857)
(SMS-016) Dev Mode cheat list overlaps the button to toggle cheats (discovered by @redyoshi857)
(SMS-018) Husk does not have animations and is just an overlay of Luigi (not really a bug but needs to be changed ASAP as it detriments from using Husk) (discovered by @redyoshi857)
(SMS-019) Stefano is unlocked after beating Caveman Cliff Hike, not Showdown on the Falls (discovered by @redyoshi857)
(SMS-020) Using the Invincibility cheat causes game to crash (discovered by @redyoshi857)
(SMS-021) Watching the whole cutscene where Peach is kidnapped doesn't count the cutscene as finished, so the music still plays and you can click to skip (discovered by @redyoshi857)
(SMS-022) Coin blocks give all 10 coins at once rather than one at a time (discovered by @redyoshi857)
(SMS-023) Midway through the Cloud Ship Scralaxy Time Trial there's a spot that causes you to glitch through the floor and die (discovered by @redyoshi857)
(SMS-024) Ceiling detection can sometimes cause the player to glitch through the floor and die (possibly related to SMS-023?) (discovered by @DjDmaster)
(SMS-025) Fireballs do not have wall or ceiling detection (discovered by @DjDmaster)
(SMS-026) Infinite coins at the end of The Underground (discovered by various people)
(SMS-027) Bosses do not despawn after leaving the boss screen (discovered by @DjDmaster)
(SMS-028) Objective-a-thon timer counts down while in pause menu (discovered by @DjDmaster)
(SMS-029) Sometimes the warp pipe to Green Grass Scralaxy does not appear (discovered by @ZappyBarbecue10)
(SMS-030) Cutscene does not count as “finished” unless clicked to skip, even if you do so after the intended end (discovered by @redyoshi857 and @ZappyBarbecue10)
(SMS-031) Star collection screen overflows through costumes causing a different character to sometimes appear (discovered by @ZappyBarbecue10)
(SMS-032) Diving or jumping into a galoomba sometimes causes the player to take damage (discovered by @redyoshi857 in 0.2.9, @ZappyBarbecue10 post-0.4.8)
(SMS-033) Time Attack mode does not exit when exiting a stage (discovered by @ZappyBarbecue10)
(SMS-035) Jump noise plays multiple times when jumping (discovered by @ExplodedMushroom)
(SMS-036) In mobile mode jumping is only possible at lowest height (discovered by @ZappyBarbecue10)
(SMS-037) Pausing during cutscenes is possible (discovered by @ZappyBarbecue10)
(SMS-038) Ongoing wall collision issues (discovered by @ZappyBarbecue10)
(SMS-039) Double jump possible in starting room of castle when entering doors (discovered by @scramaso)
(SMS-040) Possible to get stuck in broken Mushroom Festival level from unfinished missions. Will be fixed when all levels are implemented! (discovered by @lev1up)
(SMS-041) Falling into a pit while switching screens causes either death or wall clipping (discovered by @theboss19283)
(SMS-042) Turning into Fire Mario and entering a pipe at the same time causes the powerup to not go away eventually (discovered by @theboss19283)
(SMS-043) Dying while in a minecart causes all enemies to do no damage to you for the rest of the minecart segment (discovered by @redyoshi857)
(SMS-044) Minecart levels are way too difficult for their location in the game
(SMS-045) Background in the Peach getting kidnapped cutscene shakes out of place exposing the bugged out normal game behind (discovered by @redyoshi857 and @Speedy663)
(SMS-046) Exiting Spearhead Showdown does not despawn Giant Spearhead (discovered by @gaming_spider999)
(SMS-048) Minecart Mayhem is unable to be beaten (discovered by @redyoshi857)
(SMS-049) Collecting Cloud Ship Scralaxy's Grand Star does not allow the player to open the door to the Basement (discovered by @redyoshi857)
(SMS-050) Star counter in pause menu renders above guide and shop (discovered by @redyoshi857)
(SMS-052) “Welcome to the Scralaxy” text does not disappear immediately when exiting a level (discovered by @gaming_spider999)
(SMS-053) On the 7th screen of The Adventure Begins, going back a level causes repeated death (discovered by @gaming_spider999)
(SMS-054) Hitbox sometimes is visible (discovered by @gaming_spider999)
(SMS-055) Mario's dive will sometimes cause him to use Luigi voice clips (discovered by @SuperStarterSquad)
(SMS-056) It is possible to double-jump in a minecart (discovered by @SuperStarterSquad)

newbie20909 wrote:

theres a bug on the unfinished levels where if you go in one then it will teleport you back to the start of the game

PixelKing777 wrote:

when i moved from part of a level to the next i the character ran into a wall then went up. i'm not sure if it's a glitch or poor level design.

PusheenGames23 wrote:

game crashed when i got stuck in the wall when farming 1ups on crystal mine