2D cartoon HUD frame for a platformer game, designed to hold three glowing tube amp lives, set in a vibrant alien forest environment. The frame is metallic with subtle retro details, the frame should be quite simple to not overlay too much space. The tubes are glowing orange with visible internal filaments and circuitry. The visual style is cartoonish, colorful, and fits with whimsical platformer games, consistent with purple grass and mushroom aesthetics. --niji 6