For what it is the game is alright. A matching game with digital equipment and energy pictures.
I'd say the game was good if it weren't for the exclusion of a few features.
-The game doesn't have anything in the way of sound effects of background music.
While not necessary for a game, it is always a nice touch to have a little bit of music.
I'm sure the fine folks of NewGrounds would be more than happy to share some of their music with you if you gave them credit.
-The How To Menu and Options menu have nothing inside of them. This may have been a joke based on the simplicity of the game, but even then, adding...
---A mute button in the options menu should you decide to add sound effects or a music track that plays in the background or menu.
---A simple demonstration in the how to menu (mouse hovering over cards and flipping them over)
---A card option, more cards for people that want a challenge and less cards for people that want to practice.
These adjustments would give the menus are reason to be in the game, as opposed to just being a joke.
-There is no restart button upon completing the game. I have to refresh the page in order to play again. While a minor complaint, adding a restart button would make it so the game functions and can restart within itself without any external means.
-The game has a timer and a score counter, having a high score show up upon beating the game would make it so people could challenge themselves again or others. Adding a restart button as well would help to achieve this end.
It would be cool to see if you revisit this game and improve it.
Good work for now though! :P