This Naruto papercraft is the Hashirama Senju and his brother, the cube craft paper toy is designed by blackignus. There is another Naruto Hashirama Senju cube papercraft at the site: Naruto – Hashirama Senju Cube Craft.
Hashirama was shown to be a very calm and collected person, as well as kind and caring, with a deep sense of loyalty, great charisma and negotiation skill. He saw the people of Konoha as a part of his own family, and his legacy took a firm root in the village. He was also shown to be a very wise and insightful man, as he passed on great teachings to Hiruzen. It was he who first believed that all Konoha shinobi should show true loyalty to each other, and that a Kage must be willing to put his life on the line for his village to set an example for all others. This belief of his is known as the "Will of Fire". Hashirama also seemed to have a sense of honour regarding his opponents and, despite their rivalry, possessed great respect for Madara Uchiha.
Both he and Tobirama were revived from the dead by Orochimaru using the Impure World Reincarnation technique to fight Hiruzen during the invasion. While fully aware of what was going on, and saddened that he would have to fight his former student, Hashirama and his brother were robbed of their free will as a result of a seal employed by Orochimaru into the back of their heads. Hiruzen quickly resolved to kill his masters and used a very powerful fire technique that was easily countered by one of Tobirama's walls of water that was then turned into an attack that was stopped by Hiruzen's own earth wall.
During the battle, he demonstrated great teamwork and combination attacks with his brother. He also demonstrated his great Wood Release abilities, forcing Hiruzen to summon Enma for assistance, and at the same time showed great taijutsu skills. His soul, along with his brother's, was eventually sealed by Hiruzen when he combined the Dead Demon Consuming Seal and the Shadow Clone Technique to strike both of them at the same time. Before his soul was completely removed, he and his brother apologised to their former student for the trouble they had caused.
Because of the heritage of the Senju - who are said to be direct descendants of the Sage of the Six Paths - and the kekkei genkai that Hashirama possessed, his DNA became highly coveted. During the battle at the Valley of the End where Madara Uchiha was thought to have died, the latter took the opportunity to collect his DNA, integrate it into his body, and allow him access to the Wood Release kekkei genkai.
Some time after Hashirama's death, Orochimaru experimented with Hashirama's DNA. Desiring Hashirama's unique abilities, Orochimaru exhumed the First's body and infused sixty child test subjects with DNA harvested from his remains, hoping that one would prove able to use Wood Release. Only Yamato survived the process.
Danzō Shimura's right arm had also been infused with Hashirama's DNA through a similar experiment with Orochimaru, in the hopes of controlling the powers of the Nine-Tails, as well as to increase his physical energy to maintain the ten Sharingan embedded on his right arm as well as use the technique Kotoamatsukami within a relatively short span of time compared to the decade it would've taken on its own. Those cells also allowed him to use Izanagi.
With some of the cells taken from Hashirama, Tobi created White Zetsu, though his Wood Release is stated to be not as powerful as Hashirama's. Tobi also implanted Hashirama's cells into his own body which allowed him to use Izanagi. He also had the cells 'planted' at his headquarters from which grew a massive flowering tree which has a mindless clone of Hashirama coming out of its base. It also supports the Demonic Statue of the Outer Path, and, having gradually been fed amounts of the tailed beasts chakra, among its roots, seems to have helped produce a legion of 100,000 White Zetsu clones for Tobi's army against the Allied Shinobi Forces' numbers of about 80,000.
Part of the legacy that Hashirama has also left behind is known as the Will of Fire, a belief held by all the members of Konohagakure. Tobi frequently mentions or remembers Hashirama, his musing over his sworn enemy tends to range from both utter contempt to a begrudging respect and admiration. Tobi does admit that Hashirama was the only person whom he respected of the Senju clan and claims that Naruto Uzumaki has inherited Hashirama's Will of Fire while Sasuke Uchiha has inherited the hatred of his clan.