Other:
* Add pixel art skin.

Fix:
* Sharpen, Harden, and Phantom Barrier should apply buff if upgraded when it's in hand.
* Description of Wormhole.
* Attack + Summon cards may block combat to end.

Other:
* Show red glow for cards that take effect next turn.

Other:
* Update image of Remember and Forget.
* Add fallback logic for shader compile failure.

Fix:
* Doppel position on ultra wide screen.

Other:
* Border of Vortex is gold when it hasn't been played this turn.
* Cell Phone have different effect when there's no Strikes in your deck.

Fix:
* Energy doppel description in English.

Other:
* Update Korean translation.

Fix:
* Hyperthymesia shouldn't give you a card with healing tag.
* "The Time Walker?" fight should be removed when play with skin "Evil".

Other:
* Add achievement icons for each skin.

New:
* Add new skin "Jigen".

Balance:
* Parallel Blade increase damage increment when upgraded 5 -> 6.

New:
* Add API for new skins.

Other:
* Add BGM for final boss fight. (from Steins;Gate)