Based on the game by Valkyria.

Are all Japanese animations "anime"?

Japan’s media industry considers any animation work regardless of country of origin to be anime (アニメ). For example, during the 2015 Tokyo Anime Award Festival (TAAF), Disney’s Frozen was nominated alongside four Japanese works for the Anime of the Year award.
Frozen ended up winning the Grand Prix award for theatrical works, beating out Japan’s Stand by Me Doraemon (STAND BY ME ドラえもん), which received the Merit Award. From the perspective of foreign markets, however, anime is considered to be works of animation that are created by Japanese production companies.
Most of these works are created primarily for Japanese audiences, but a few are contract productions commissioned by foreign producers and destined for foreign film and television markets. Furthermore, there are six technical categories of animation that are considered anime by the Japanese media industry. The first and most commonly known category is cel animation.
This type of animation combines pictures drawn on transparent celluloid sheets with full-color backgrounds.
After each celluloid frame is photographed, combining them together creates a full animation sequence. The second category, digital animation, is primarily used today with the help of computers.
By scanning hand-drawn animation frames, the complete animation sequence is instead created using computer programs rather than taking a photo of each frame, which is more time consuming. Anime also includes more traditional formats such as paper animation, which is created by taking photographs of images drawn on paper.
This means frames and background are drawn together, not separately like in cel animation. Anime can also be cutout animation, created by photographing the movement of paper cutouts to form an animation sequence. When people think of animation, they often think of two-dimensional drawings.
But Japan also considers stop-motion puppet animation to be anime. Finally, Japan is also diving into computer-generated (CG) animation.
Japan’s animation studios are pioneering the development of cel shading in order to make 3D CG animation look like 2D animation. Aside from cel-shaded CG animation, full 3D CG animation is also starting to enter the animation market, though it is not being embraced as quickly in Japan as in the United States.