You are downloading the Retro Hero XAP file v220.127.116.11 for Windows Phone. Retro Hero is a free and fun Platformer game: Reviews:"a game which is playable and enjoyable time and time again." - Eyeofthevortexonline.com"It certainly looks like the kind of ... You can now download the offline XAP file to install & try it.
Download Locations for Retro Hero 18.104.22.168 XAP file
Note: To install it manually from an SD card, you should choose one of the server location above to get the offline Retro Hero XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.