This is very beautiful. I feel conflicted because it achieves what it aims to do in every way, and succeeds in making a nearly flawless demonstration of fire contained within a web browser; however fails to engage in any way as a game or "simulator" — when I think of a fire simulator I think of Little Inferno. That achieved wonderful beauty, but obviously it's kind of hard to review something as a game when it's ultimately not one.

I'm settling for half way.
Absolutely horrible game, one of the best simulations of fire that I've seen on a browser.

This game has a good presentation. There is a decent level of polish and simplicity off the bat which is automatically engaging for the player.

The mechanics are slightly off putting. There is a very small window for the player to jump over obstacles. They are immediately greeted with a notification, and paused screen telling them to press "A" to continue.
For a game where dying is going to be an integral part of it, pressing "A" becomes a chore after a while. I constantly dreaded dying for that unnecessary screen. Tiny Bud should automatically wind back up at the start of the level when he dies so players are encouraged to increase their skill.
This feature has single handedly increased the chance that players will be more likely to leave the game when they die, as the control is taken out of their hands and they are given the opportunity to contemplate whether it's worth continuing. If this screen popped up when you ran out of lives, and took you to the beginning of that stage, this would be more understandable.

For a game that is solely focused on the keyboard, it is annoying that the menu screen suddenly needs to have mouse movement. It becomes a chore to get focused on one controller system, and have to move your mouse again to select your stage. Everything should be done with the keyboard, unless there is an integral feature that will require the player's hand to be on the mouse during all stages of gameplay.

The music is quite nice, and it doesn't feel overwhelming. For something simple, this complements the game. Good work.

Overall this is a good little time killer with nice simplicity but is ultimately overshadowed by its poor implementation of a difficulty spike that fails to keep the player motivated to continue.