Improving engine performance changes how the aircraft accelerates, while Boost upgrades extend its available propulsion and Bonus upgrades increase flight earnings. Free shop purchases are enabled in this modified version, allowing players to obtain these coin-priced improvements without spending in-game money. Experimenting with different upgrade levels becomes easier because repeated flights are no longer necessary simply to afford the next purchase. The modification does not provide unlimited boost fuel or guarantee a successful landing. Players still need to manage their trajectory, control their descent, and reach the runway through normal gameplay.