Play a shooter game with 6 worlds and hundreds of levels. Use over 30 unique bubbles and special boosters like flying bombs and fireballs. Complete challenges in four gaming modes. Defeat bosses and progress through increasingly difficult levels.
Learn Chinese with flashcards covering levels 1 through 6. View simplified and traditional characters with pinyin and English definitions. Listen to word pronunciations, bookmark words, and add notes. Review flashcards for all levels or speed review.
Fly an aircraft and battle enemies including soldiers, tanks, helicopters, and airplanes. Survive three levels in a row in the new rouge-like mode to keep upgrades. Use power-ups to enhance aircraft abilities.
Play a shooter with multiple difficulty modes including chapter and challenge stages. Earn points to upgrade your ship and access new content. Clear missions to unlock stages and progress through the game.
Study and test knowledge of the 20 standard acids through customizable quizzes. Topics include names, structural formulas, 1-letter and 3-letter codes, codons, and side chain classes. Quizzes are available for free. Remove ads with an in- purchase.
Play a endless space game by gliding, flying, and dodging obstacles. Earn points by landing on rockets. Unlock new rockets and power-ups. Compete on leaderboards. Listen to catchy music. Challenge yourself to score higher.
Learn vocabulary through interactive space-themed games and flashcards. Practice words with text, audio, and visual icons. Build vocabulary in categories like numbers and everyday topics. Track progress and review words for reinforcement.
Play a fast-paced shooting game with easy controls. Shoot enemies in quick levels. Set and track high scores. Challenge yourself with increasingly difficult opponents. Customize weapon aiming and firing actions. Compete for top rankings.
The app revisits an 80's arcade shooter with enhanced touch controls and Retina Display support. It features eight levels, two difficulty settings, and unlockable achievements.
Learn languages through interactive gameplay, exploring a world where each item teaches new vocabulary. Associate words with locations to enhance memory. Use learned words to defeat robots and progress through the game.