Works well enough for doodling & quick animations. Just don’t expect a perfect 1:1 clone.
If you prefer a native Android app that captures the "Flipnote vibe" without the hassle of emulators, several modern tools offer similar frame-by-frame simplicity. flipnote android
Flipnote-style animation on Android is possible now. Not official, but surprisingly fun. Frame-by-frame, onion skin, export options. Nostalgia level: high. Works well enough for doodling & quick animations