Graphic

All the graphics used in the game are vector graphics released into Public Domain. The graphics are resolved at the required resolution at the start. So quality can be controlled.

grass, wall and characters

These images were created by the Kenney studio, and were kindly released into the Public Domain. They can be downloaded from OpenGameArt.org.

bullets

This image is released into Public Domain and can be downloaded from https://openclipart.org/detail/194101/243win.

pharmacy

This image is released into Public Domain and can be downloaded from https://openclipart.org/detail/24564/simple-space-platform-game-stuff-4.

blood

This image is released into Public Domain and can be downloaded from https://openclipart.org/detail/192066/blood.

guns

This images are released into Public Domain by SpriteAttack and can be downloaded from https://opengameart.org/content/gun-construction-kit/.

explosion

This image is released into Public Domain and can be downloaded from Openclipart.