By replacing a typical trigger with an air pump, we discovered that the haptic resistance of squeezing the pump and the satisfying "pop" added a new layer to shooting—but this was just one part of the gameplay. We experimented with pneumatics, shield deflectors, and even fishing reels to enhance the experience. Yet, the balloon’s unpredictability frustrated players, and the extra features felt like clutter, over-controlling the game. Reviewing our user tests, we realized the thrill wasn’t just in firing the shot—it was in the reaction of being shot at. True immersion isn’t about adding features but making players feel the game at every moment. We focused on creating satisfaction through visual, audio, and haptic feedback, refining every detail. Even the barrel required millimeter-precise adjustments to perfect the “pop.” We chose a tightly stretched cellophane screen for a sharp, impactful sound when hit. Working with such delicate material meant countless tweaks, from c-clips to vacuum forming, ensuring a seamless, immersive design.