Japan's "Moon Sniper" spacecraft will attempt a historic touchdown on the lunar surface this weekend using pinpoint technology the country hopes will lead to success where many have failed. The descent of the lightweight SLIM craft, nicknamed the "Moon Sniper" by space agency JAXA, is scheduled to start at midnight Japan time on Saturday (1500 GMT Friday). Success would reverse Japan's fortunes in space after two failed lunar missions and recent rocket failures, including explosions after take-off. Adding to the playful mood, JAXA has released an online video game called "SLIM: The pinpoint moon landing game". More than 50 years after the first human Moon landing, countries and private companies are racing to make the trip anew.