There are definite pauses between each blast. He could definitely perform one "action" between each time the blast goes off.

Rick gets as close as he can without getting hurt then blasts through with feline agility and bonus action dash, lightning fast!

((180 ft speed in a blink!))

(So how far does Rick want to run with that speed? It'd definitely get him to the next segment. It'd get him to the very end of the hallway if he wanted to.)

((To the token, if he can.))

Rick waits a few more rounds, waiting, timing it. And then, after one more blast, he dashes.

He easily makes it past the "bard" as they switch spots in the room. In fact, he moves so fast that anyone that would be watching sees the poor puppet bend and strain, as if not meant to move that fast. And he keeps going, rushing straight through the other section. For a split second, he sees something about to pop out from the ground in front of the end once again.

And he rushes past it before it can rise up in full.

"Halt there scoundrel, I've my eye on you! As a ranger, I... Hey, wait, hold on a second! How are you already here?"

There seems to be another mask at the end of this hallway. It's laughing much like a comedy mask, perhaps only just a bit more... Smug?

"Are you one of Hermes' kin..?  Oh well, take your just reward."

Behind him, all obstacles disappear.

Rick raises his arms in victory.

"Rick should have just run from the beginning. Hermes? Rick thinks Rick's aunt Ceeta had Hermes once."

As Rick reaches for the reward he whispers,

"Ceeta couldn't sit for a week."

"Sounds like Rick has the zoomies again...", Breldo drawls

The mask, while unmoving, seems to chuckle.

"I think that's a different one you're talking about!"

He collects the obsidian disk, which looks exactly the same as the disk they got in the other room except for the writing upon it. Sylvia eventually helpfully translates it into meaning "flesh".

"Rick thinks it looks like stone and flesh."

He puts it into a pouch and heads back out.

He looks to see if anyone else has went for anything, if not he'll get a second!

((What's left?)

The doors on the large wall on the side they originally entered are, in order:

Lore, Comedy, Fiction, Reality, Tragedy, Valor.

In the middle of these doors is the stairway leading out, and some kind of contraption.

Beside comedy, no other rooms have been explored yet.

Rick will pause on his way to Lore, the others very definitely not being his style, to check out the contraption. He will mentor the others,

"Rick's advice is to just run, really fast. Rick should have run really fast out of comedy."

Inspection: 14

Since the other seem taken for flights of fancy in this ancient puzzle room, Breldo, the sensible halfling that he is, moves in the direction of Reality. Kids talking about magic and such nonsense...

The contraption is strange, and Rick's mind likely trails off to how something like this must be worth a fortune to the right collector. Which brings him dismay as he realizes the device is very firmly bolted into the pedestal it is on. Which is in turn affixed to the floor.

As for what it is though, is a slightly harder question. Most of the device is made out of some polished metal, but there are a few open gears affixed to the side, and what seems to be... Wheels? on one side. While the edge facing toward the stage on the other side of the room has a glass, slightly domed edge.

He gives all those a few gentle experimental pokes and deduces they're probably not meant to be directly messed with, though. What is is an opening to one side, where he finds a large recess in the device, as if something has to go in. It doesn't take him long to figure out that the disk he found earlier would be a perfect fit. There's probably room for... Six of them, in total? And then, finally, there's a button on the back of the device.

Breldo rolls his eyes at it all, and goes to carefully peek the "reality" door. He's met with a long hallway, split up into three different segments, each one separated by a narrowing in the corridor. If he had peeked into fiction before he'd recognize the layout seems to be exactly the same, with once again a pedestal with a disk on it at the end.

Rick declares,

"Rick thinks we need to put the stone disks in the Thingy here."

He then turns to head into Lore.

"Thingy has six spots, Rick will get this one too. Breldo gets that one? Friends Khond and Oren get the last two?"

Breldo looks around for traps or other nonsense that might prevent moving down the hallway. 

Investigation: 3

While Rick walks over back toward Lore, Breldo checks out the first section of the hallway more closely. It doesn't take him too long to notice that some of the tiles on the floor seem off, like they'd be pressed down if he walked on them. And there's a shadow of... Something, just behind the first narrow intersection.

"Breldo should just run fast!"

Rick offers as he goes.

Breldo pulls out an unlit torch and extending it pokes at one of the odd tiles.

Breldo, give me a dexterity saving throw.

Oren nods and agrees with Rick. “Yes, seems like we collect these magical things!”  
Oren heads to a random unexplored doorway.