Such is the case of coder Dyspros_ earlier to release Easter Game version 1.0.
As its name implies, Easter Game is a Lua-coded homebrew game, where the player's objective is to catch the falling eggs being laid by the chickens onscreen. The basket is in turn controlled by your PSP's directional buttons.
To install this game, unzip the download bundle, and load the two folders into your PSP's GAME folder. We were using fw 1.5 when we loaded and played Easter Game on our PSP - guys whose consoles run on a different fw may want to try visiting Dyspros_' release thread over at the QJ.Net Forums for extra details. Enjoy your download, and make sure to visit some of the author's other previous homebrew projects.