Treasure rooms inside bottomless pits - how?

[A Very Kupo Guy]

I keep finding treasure on the other side of bottomless pits with invisible floors. Now, in Gungeon you could use spent bullet casings to show you where the floor is, but I can't seem to find any way to reveal the floor in this game, and trial-and-error is 100% out since you lose so much health with each fall.
How are you meant to get at these?

[glass]

Just hover the blink. If it is selectable, it's solid, otherwise it's a bottomless pit. Pretty lame, not sure what the intention was.

[brickey.8]

If you have any spells or items that create elemental tiles, you can use them on the pit. Any floor you can walk on will be turned, pits will stay black--though you will have to memorize it since the tiles will fade.

It'll take several castings to find the whole path, so if you're using a spell you may have to spread it out over several combats (using the free MP refill at the start of each fight). The items that create elemental tiles are mostly pretty weak so this is the best use you'll find for them.

I didn't even realize you could reveal them by using the blink. That's almost certainly a bug.

[Done25]

Cheese it with blink tile checks.

[Mike]

bump, best tip