Bedrock Edition:Block Replacement Bypass
From Pocket Edition v0.1.0 alpha to v0.3.2 alpha, water, lava, fire, or snow could be replaced with certain blocks to create invalid states the blocks could not normally exist in. Due to the replacement of the block bypassing the initial update check, the blocks are able to be placed.
Uses
Brown Mushroom
Brown mushrooms can be placed invalidly using this method, but they will only last temporarily until they receive a random tick. This will then cause them to break off, making it a temporary discontinued feature.
Water that was just placed for BRB
The water replaced with a brown mushroom, leaving it floating
Cactus
Cactus could be placed on invalid and floating positions. As long as the cactus does not receive growth updates, such as with a block on top of the cactus, it will remain in that state forever.
Water that was just placed for BRB
The water replaced with a cactus, leaving it floating and next to a solid block
Dandelion
Dandelions can be placed invalidly using this method, but they will only last temporarily until they receive a random tick. This will then cause them to break off, making it a temporary discontinued feature.
Water that was just placed for BRB
The water replaced with a dandelion, leaving it floating
Rose
Roses can be placed invalidly using this method, but they will only last temporarily until they receive a random tick. This will then cause them to break off, making it a temporary discontinued feature.
Water that was just placed for BRB
The water replaced with a rose, leaving it floating
Ladder
Ladders can be placed invalidly using this method. This can be used to put ladders on transparent blocks and even air. Placing a ladder on any invalid block makes the ladder completely invisible, but it otherwise functions normally. Ladders placed on air are not climbable and have the collision box of a full solid block.
Red Mushroom
Red mushrooms can be placed invalidly using this method, but they will only last temporarily until they receive a random tick. This will then cause them to break off, making it a temporary discontinued feature.
Water that was just placed for BRB
The water replaced with a red mushroom, leaving it floating
Saplings
Saplings can be placed invalidly using this method, but they will only last temporarily until they receive a random tick. This will then cause them to break off, making it a temporary discontinued feature.
Water that was just placed for BRB
The water replaced with a sapling, leaving it floating
Sugar Cane
Sugar cane could be placed on invalid and floating positions. As long as the sugar cane does not receive growth updates, such as with a block on top of it, it will remain in that state forever.
Water that was just placed for BRB
The water replaced with a sugar cane, leaving it floating
